first divide it into 3 groups... 4 for each group...
& H$ ~& o1 N4 H7 l; F公仔箱論壇den use 2 groups to test... if the weight is same... den throw away these 2 groups.. if not... use another 1 group to test with tat 2 groups... throw away the same weight groups...
" _2 u, u* T+ q; E' {; S5.39.217.77den... left 4 balls...
; J# O5 L. H, U' ], \tvb now,tvbnow,bttvbwhen u use tat 3 groups to test... u oredi know it is heavier or not...
$ K1 U& `, t# `0 e- R3 Htvb now,tvbnow,bttvbso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
4 ]# K ~6 r+ s: ztake the heavier or lighter 1... throw away tat 2 normal ball...
5 r( D8 E) v1 ^" y% m% g6 ~den u juz nit 2 test the last 2 balls...
% Y, T' S- J% A9 f# y# ~TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。same for now... take the heavier or lighter 1... |